SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for m-j.cc
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- *.m-j.cc
- Valid from
- Dec 19, 2025
- Valid until
- Dec 19, 2026 (149 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 50CB9BC13403FE29F53EAFB814D95E4A
- SHA-256 fingerprint
- F7:81:5A:B9:5C:7A:2A:C8:29:49:AB:BE:50:00:CF:C8:D7:FB:4E:BA:AE:CC:95:50:D9:AF:79:2C:90:5E:1E:34
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by m-j.cc's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch m-j.cc continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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